crm_diff (8) - Linux Manuals

crm_diff: Part of the Pacemaker cluster resource manager

NAME

Pacemaker - Part of the Pacemaker cluster resource manager

SYNOPSIS

crm_diff original_xml operation [options]

DESCRIPTION

crm_diff - A utility for comparing Pacemaker configurations (XML format)

The tool produces a custom (diff-like) output which it can also apply like a patch

OPTIONS

-?, --help

This text

-$, --version

Version information

-V, --verbose

Increase debug output

Original XML:

-o, --original=value

XML is contained in the named file

-O, --original-string=value

XML is contained in the supplied string

Operation:

-n, --new=value

Compare the original XML to the contents of the named file

-N, --new-string=value

Compare the original XML to the contents of the supplied string

-p, --patch=value

Patch the original XML with the contents of the named file

Additional Options:

-c, --cib

Compare/patch the inputs as a CIB (includes versions details)

-u, --no-version

Generate the difference without versions details

EXAMPLES

Obtain the two different configuration files by running cibadmin on the two cluster setups to compare:

# cibadmin --query > cib-old.xml

# cibadmin --query > cib-new.xml

Calculate and save the difference between the two files:

# crm_diff --original cib-old.xml --new cib-new.xml > patch.xml

Apply the patch to the original file:

# crm_diff --original cib-old.xml --patch patch.xml > updated.xml

Apply the patch to the running cluster:

# cibadmin --patch patch.xml

AUTHOR

Written by Andrew Beekhof

REPORTING BUGS

Report bugs to pacemaker [at] oss.clusterlabs.org